Hearing that familiar “battery low” message or series of beeps from your hearing aid can be frustrating. To stay powered up longer, here are practical strategies to extend the life of zinc‑air batteries.

Simple Tips to Extend Zinc‑Air Battery Life

• Use oldest batteries first—they naturally lose charge over time. Avoid dead time by rotating stock.
• Store at room temperature and in a dry place—refrigerators and humid areas like bathrooms can shorten battery life.
• Keep the foil tab on until use to prevent premature activation and preserve power.
• Let new batteries “breathe” for 3–5 minutes after removing the tab; this improves efficiency by allowing air to initiate the chemical reaction.
• Leave the battery door open when not in use to prevent gradual drain and to vent moisture.
• Remove the battery if the aid won’t be used for a while—this avoids moisture build-up and potential corrosion.
• Use a drying kit to protect hearing aids and batteries from moisture damage.

What Can Drain Batteries Faster?

• Bluetooth streaming significantly increases power consumption.
• Unequal battery life between ears can be due to differing hearing loss levels, streaming setups, wax buildup, or battery age.

FAQ

How long do zinc‑air hearing aid batteries last?

Typically 3 to 10 days, depending on battery size, streaming, and usage levels.

Should I open the foil tab early?

No. Keep it sealed until you’re ready to use the battery to retain full lifespan.

Are rechargeable hearing aids a better option?

They can eliminate battery hassles. Explore options in our review: Starkey Rechargeable Custom Hearing Aid.

Want more actionable advice? Check out our guides on why one hearing aid battery may die sooner and troubleshooting fast-draining rechargeable batteries.